What is the measure of ∠A, to the nearest degree? 15 POINTS
a) 17°
b) 33°
c) 57°
d) 73°

Answer:
33 degrees
Step-by-step explanation
I used arcos, ∠A = arccos((a2 + b2 - c2)/2ab)
= 0.5795 rad = 33.203° = 33°12'11"